Cultivating-plow blade.



N0:848,779. PATBNTED APR. 2, 1907.

' A. R. SULLIVAN.

' GULTIVATING PLOW'BLADE. 'APPLIOATION BIL ED MAY 28, 1906.

guvewho'c 20 different forms of my improved blade.

thicker upon one ARTHUR RICHARD SULLIVAN, OF ROME, GEORGIA.

CULTlVATlNG-PLOW BLADE.

7 Specification of Letters Patent.

Patented April 2, 1907.

Application filed MayES, 1906. Serial No. 319,179.

To all whom it may concern:

Be it known that I, ARTHUR RICHARD SUL- LIVAN, a citizen of the United States, residing at Rome, in the county of Floyd and State of Georgia, have invented certain new and useful Improvements in Cultivating- Plow Blades; and I do declare the following to. be a full, clear, and exact description of the invention, such as will enable others 10 skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in the points or blades of plows used in cultivating cotton, corn, and the like; and it consists in the novel construction, combination,

and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, in which I Figures 1, 2, and 3 are perspective views of Fig. =4 is a transverse sectional view taken on the plane indicated by the line 5 5 in Fig. 1.

I Cultivating-plow blades or points now in common use are made by cutting a flat bar 2 5 of uniform thickness into the desired shape;

but in the practice of my invention I roll the bar from which the blade is to be made so that it is shaped in cross-section as shown in Fig. 4. It will be noted that this bar 1 is opposite side or edge 3, so that the plowblade will be lightened in weight, and thereby made less expensive, and at the same time in creased in strength and durability. The

side or edge 2 than upon its edge 2 is the cutting edge of the blade and the part where the greatest wear takes place.

Hence by thickening this portion and having the remainder of the blade of gradually-decreasing thickness it will be seen that the metal will be so distributed as to secure the greatest strength where it is needed and also to increase its wearing qualities. Figs. 1, 2, and 3 show different forms of the improved blade; but all of them are tapered trans versely, as will be readily seen.

From the foregoing description, taken in connection with the accompanying drawings, the construction, use, and advantages of the invention will be readily understood without requiring a more extended explana tion.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A plow-blade having straight front and rear edges converging toward the lower end and wedge-shaped in cross-section, the lower end of the blade being beveled from the front to the rear and having an upward-curved eX- tension of its rear edge.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ARTHUR RICHARD SULLIVAN. 

